Our Data Sources
Flat 63, 1, William Street, Slough has a single entry in the Land Registry from October 2022 and a single entry in the EPC database dated January 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If Flat 63, 1, William Street, Slough is in very good condition we estimate a sale value of £202,936 and a rental value of £1,141 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £179,744 and a rental value of £1,011 per month.
Energy Efficiency
Flat 63, 1, William Street, Slough has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 11 Jan 2021.
The property is not connected to mains gas and has high performance glazing. It is heated using Community scheme.
Sold Prices
According to HM Land Registry, Flat 63, 1, William Street, Slough was last sold on 28th October 2022 for £178,500 and was recorded as a leasehold flat.
The property has only had this single sale since 1995.
Since October 2022, the market for similar properties has dropped by 13.1%.
- Sold Oct 2022£178,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to Flat 63, 1, William Street, Slough within a radius of 390 metres over the last 2 years.
The most recent example is Flat 126, 26, High Street, Slough, SL1 1ER, a leasehold flat which sold for £170,000 on the 28th November 2025.
Read more about house prices in SL1.
- Sold Nov 2025£170,000 | 2 Bed FlatFlat 126, 26, High Street, Slough, SL1 1ERFlat 126, 26, High Street, Slough, SL1 1ER
- Sold Jan 2025£190,000 | 2 Bed FlatFlat 18, Cornwall House 55-57, High Street, Slough, SL1 1DZFlat 18, Cornwall House 55-57, High Street, Slough, SL1 1DZ
- Sold Mar 2024£187,500 | 1 Bed FlatFlat 11, 1, William Street, Slough, SL1 1GZFlat 11, 1, William Street, Slough, SL1 1GZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
William Street, Slough, SL1 has a total of 66 addresses. According to our analysis of all the public data, Flat 63, 1, William Street, Slough is the 47th largest and the 47th most expensive property on the street.
When compared to the postcode district it is £179k less expensive than the average property in SL1.
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Schools Nearby
- 900mSt Mary's Church of England Primary School
- 1.0kmJames Elliman Academy
- 1.2kmIqra Slough Islamic Primary School
- 800mSlough and Eton Church of England Business and Enterprise College
- 1.2kmSt Joseph's Catholic High School
- 1.3kmLynch Hill Enterprise Academy
More reading links
Public Transport Nearby
- 400mSlough
- 2.8kmWindsor & Eton Riverside
- 3.1kmWindsor & Eton Central
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.












